Hiljutised uurimused on siiski näidanud, et sellised mõhnata ketasgalaktikad (NGC 3621) ei ole Universumis sugugi haruldased nagu galaktikate tekke stsenaarium praegu eeldab. Meie lähemas Universumis leidub analoogseid mõhnata ketasgalaktikaid suhteliselt palju (võimalik, et umbes pool kõigist spiraalgalaktikatest).
As we have seen in Chapter 2, disk galaxies in general consist of a disk component made up of stars, dust and cold gas (both atomic and molecular), a central bulge component, a stellar halo, and a dark halo.
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